8. • Caudal Regression Syndrome
• Absent sacral vertebrae, anal atresia, malformed
genitals, renal abnormalities
• Incidence: 1:7500 births; 16% of these children have
diabetic mothers.
• Imaging: if symptoms are present, 95% of patients have
conus abnormalities (truncated tip, sparse cauda
equina).
• Types:
– With truncated & high lying conus
– With truncated conus that is inferiorly located & tethered